Accident Stale

CHP : Residual delays on CA-4 Eastbound and Westbound between Balfour Rd (Antioch) and Marsh Creek Rd (Brentwood). All lanes open. Expect delays.

A accident was reported on CA-4 E near Contra Costa on August 13, 2026 at 2:32 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 13, 7:32 AM

Last Updated

56 minutes ago

Aug 13, 8:45 AM

Coordinates

37.8959, -121.7127

Update History

2 observations

CHP : Residual delays on CA-4 Eastbound and Westbound between Balfour Rd (Antioch) and Marsh Creek Rd (Brentwood). All lanes open. Expect delays. Aug 13, 8:45 AM

CHP : Severe traffic alert and Traffic Collision on CA-4 Eastbound and Westbound between Balfour Rd (Antioch) and Marsh Creek Rd (Brentwood). All lanes blocked. Avoid the area. Aug 13, 8:30 AM

Source: 511_sfbay · ID 511.org/1534978 First seen Aug 13, 2026 8:30 AM

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